# 有声版
def build_command_line(new_absolute_name, video_name, audio_name):
    # ffmpeg -i /path/to/video.m4s -i /path/to/audio.m4s -c:v copy -c:a aac -strict experimental /path/to/output.mp4
    command_line = [
        "ffmpeg -i ",
        str(video_name),
        " -i ",
        str(audio_name),
        " -c:v copy -c:a aac -strict experimental ",
        new_absolute_name,
    ]

    command_line = "".join(command_line)
    print("\n", "build_commmand_line: ", command_line)

    return command_line
